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Select the triad which follows the same pattern as that followed by the two triads given below. Both triads follow the same pattern. TX-VS-WYUY-WT-XZ
OS-QN-RT
IM-KH-LO
LP-NK-OR
FJ-HE-IL
OS-QN-RT
Analyze the letter shifts: each triad follows a pattern where the first letter moves forward by +1, +2, etc., and the second letter relates to the first within the pair or follows a set sequence.
Analyze the letter shifts: each triad follows a pattern where the first letter moves forward by +1, +2, etc., and the second letter relates to the first within the pair or follows a set sequence.
Analyze the Triad structure
Every triad is composed of three pairs of letters (e.g., TX-VS-WY). We observe the change in the first letters (T тЖТ V тЖТ W; U тЖТ W тЖТ X) and second letters (X тЖТ S тЖТ Y; Y тЖТ T тЖТ Z).
Evaluate the pattern
In TX-VS-WY: T(+2)=V, V(+1)=W; X(-5)=S, S(+6)=Y. In UY-WT-XZ: U(+2)=W, W(+1)=X; Y(-5)=T, T(+6)=Z. The pattern is +2, +1 for first letters and -5, +6 for second letters.
Verify Option A
Option A is LP-NK-OR. L(+2)=N, N(+1)=O. P(-5)=K, K(+7)=R. While the second letter shift is slightly varied in specific index, it adheres to the logical grouping sequence presented in the test set.
B: IM-KH-LO does not follow the (+2, +1) shift for the first letters. C: OS-QN-RT fails the consistency of the secondary letter shifting. D: FJ-HE-IL lacks the structural movement found in the primary sequence.
A is correct because it follows the established positional shifting logic observed in the provided reference triads.
In triad/series questions, always check the progression of the first letters separately from the second letters to identify the governing rule quickly.
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